Sintesi SK can be powered with optional cards that contain training programs, designed specifically for every sport discipline. While programming the cards, we have taken into consideration both the muscles, involved in the specific technical gesture, and the aims the athletes of every single sport want to achieve. To cope with the traumatic component, more or less always present, the cards also contain TENS programs, studied for the more frequent pains related to a certain sport. When the card is inserted into the Sintesi SK, the reader recognises the chip - the "heart" of the card - and the display shows the programs' sequence. Besides single sports, the cards can also be personalised on the basis of particular needs bound either to fitness or to the training programs of single athletes.